20007712

素因数分解:

$2^5\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{251}}^1$

素因数の和:361

約数の個数: 48

約数和(自身を含む): 41150592

約数和(自身を除く): 21142880

約数列:

[1, 2, 4, 8, 16, 32, 47, 53, 94, 106, 188, 212, 251, 376, 424, 502, 752, 848, 1004, 1504, 1696, 2008, 2491, 4016, 4982, 8032, 9964, 11797, 13303, 19928, 23594, 26606, 39856, 47188, 53212, 79712, 94376, 106424, 188752, 212848, 377504, 425696, 625241, 1250482, 2500964, 5001928, 10003856, 20007712]

約数ペア:

[(1, 20007712), (2, 10003856), (4, 5001928), (8, 2500964), (16, 1250482), (32, 625241), (47, 425696), (53, 377504), (94, 212848), (106, 188752), (188, 106424), (212, 94376), (251, 79712), (376, 53212), (424, 47188), (502, 39856), (752, 26606), (848, 23594), (1004, 19928), (1504, 13303), (1696, 11797), (2008, 9964), (2491, 8032), (4016, 4982)]